Apparatus for forming paper container-bodies.



W. L. WRIGHT.

APPARATUS FOR FORMING PAPER CONTAINER BODIES.

APPLICATION FILED JAN.18, I916.

Patented Jan.16,1917.

8 SHEETSSHEET I.

(gm-Damion Wiifmwo W. L. WRIGHT.

APPARATUS FOR- FORMING PAPER CONTAINER BODIES.

APPLICATION FILED JAN.18, I916.

Patented Jan.16,1917.

8 SHEETSSHEET 2.

(liken/n01;

'W. L. WRIGHT.

APPARATUS FOR FORMING PAPER CONTAINER BODIES.

APPLICATION FILED IAN. I8. 1916.

wihwoo il/ UyZZ/ W. L. WRIGHT.

APPARATUS FOR FORMING PAPER CONTAINER BODIES.

APPLICATION FILED JAN. I8, 1916.

Patented. J an. 16,1917.

8 SHEETS-SHEET 4.

W. L. WRlGHT.

APPARATUS FOR FORMING PAPER CONTAINER BODIES.

APPLICATlQN FILED IAN- 18, 1916- 151e,. Patented Jan, 16, 1917.

8 SHEETS-SHEET 5.

wi/tmeoo mmahm.

W. L. WRIGHT.

APPARATUS FOR FORMING PAPER CONTAINER BODIES.

APPLICATION FILED JAN. 18. I916.

Patented Jan.16,1917.

8 SHEETS-SHEET 6.

n 'wuewbo a W. L. WRIGHT APPARATUS FOR FORMING PAPER CONTAINER BODIES.

APPLICATION FILED IAN-18,1916.

1 m. 3 m Patented. Jan.16,1917.

8 SHEETS-SHEET Z.

I I u I g 015 6130mm W. L. WRIGHT.

APPARATUS FOR FORMING PAPER CONTAINER BODIES.

APPLICAUQN FILED JAN. I8, 1916.

1 1 8 mm, Patented Jan. 16, 1917.

8 SHEETS-SHEET 8.

- art in the light of the following explanation WILBUR L. RIGHT, OF BALTIMORE, MARYLAND, ASSIGNOR TO THE PAPER VESSELS COMPANY, OF BALTIMORE, MARYLAND, A CORPORATION OF MARYLAND.

APPARATUS FOR FORMING PAPER CONTAINER-BODIES.

Specification of Letters Patent.

Patented Jan. in, 1mm.

Application filed January 18, 1916. Serial No. 72,710.

To all whom it may concern:

Be it known that l, WILBUR L. WRIGHT, a citizen of the United States, and resident of Baltimore, State of Maryland, have invented certain new and useful Improvements in and Relating to Apparatus for Forming Paper Container-Bodies, of which the following is a specification.

This invention relates to certain improvements in and relating to apparatus for making paper material container bodies; and the objects and nature of the invention will be readily understood by those skilled in the of the accompanying drawings illustrating what I now believe to be the preferred embodiment or mechanical expression from among other constructions, arrangements and combinations within the spirit and scope of the invention.

An object of the invention is to provide improvements in and relating to the art of producing container bodies from flat paper material blanks with the end in view of forming each body with a cemented seam at the overlapping edges of the blanks by pressure applied along the seam onl A further object of the invention 1s to form container bodies from paper material blanks by wrapping or wiping each blank around a born or mandrel so that the longitudinal edges of the blank will overlap and then applying excessive pressure to the overlapping edges to drive the cement, previously'applied thereto and allowed to become tacky or partially set, into the body or fiber of the material to form a close tight permanent seam.

A further object of the invention is to provide means for applying suitable cement to paper material container blanks while being carried forward to a body forming mandrel at a rate of speed that will permlt the cement to become partially set before the blanks are wiped or folded into body form on the mandrel and to form the tight permanent cemented seam of each body by application of excessive pressure.

A further object of the invention is to carry paper material container body blanks through a cement applying devrce by a continuous forward feeding movement and to then properly center and space the blanks andsuccessively carry said blanks for-ward step by step to a body forming mechanism to which the blanks are successively delivered and from which the formed bodies are successively discharged.

- A further object of the invention is to provide a paper material container body forming mechanism wherein flat blanks each having a longitudinal cement coated edge are successively delivered to and properly positioned on a mandrel around which each blank is wiped or folded with its longitudinal edges overlapping and to which overlapping edges excessive pressure is applied to form a permanent tight cemented seam.

A further object of the invention is to provide apparatus for applying cement to tapered flat paper material blanks andto carry said blanks forward to a tapered mandrel on which the blanks are wiped to form tapered or conical bodies each having a longitudinal tight permanent cemented seam, the cement being applied to a longitudinal edge of each blank while being carried forward and each blank being then properly centered and positioned preparatory to successive delivery at proper inter vals onto said mandrel.

A further object of the invention is to provide certain improvements in construction and in combinations and arrangements for the production of an exceedingly efficient apparatus for making paper material container bodies.

The invention consists in certain novel features in construction and in combinations and arrangements as more fully and particularly set forth and specified hereinafter.

Referring to the accompanying drawings: Figure 1, is a side elevation of apparatus constructed in accordance with my invention. Fig. 2, is an end elevation thereof, showing thebody forming mechanism. Fig. 3, is a top plan of a portion of the apparatus. Fig. 4, is a detail cross section on the line 4-4, Fig. 3. Fig. 5, is a top plan of a por-' tion of the apparatus. Fig. 6, is a cross section on the line 6-6, Fig. 5. Fig. 7, is a detail fragmentary top plan of the step by step feed table and slide, the presser bars not being shown. Fig. 8, is a detail perspective. Fig. 9, is a detail perspective of portions of the step by step feeding mechanism and its operating connections. Figs. l0, l1. and 12, are detail views. Figs. 13, and 14, are detail longitudinal and cross sections particularly illustrating the cement 10 applying device, said sections being taken on the lines 1313, and 14, respectively, Fig. 3. Fig. 15, is a detail perspective of the'horn or mandrel the yielding presser bar above the same, and the seam pressing blade, said bar being shown elevated from normal position. Fig. 16, is an end View,

to a certain extent diagrammatical showing the swinging presser heads or wipers holdsuch for instance, as appear in Figs. 3 and 5,

although the invention is not so limited. These blanks are placed one at a time on a suitable table or feedway along which they are propelled by a continuously moving feed or conveying device and by which they are carried through a glue or other suitable liquid cement applying apparatus which deposits a line or stripe of liquid cementthroughout the length of a fiat side face of each blank along one edge thereof. This feedway is provided with a longitudinal guide or edge wall against which the longitudinal edges of the blanks are alined and by which the blanks are properly positioned as they are carried forward. The blanks are delivered by the continuous conveyer to a step by step conveyer or feed device, the

feeding movement of which is alined with the axis of a mandrel or horn to which the blanks are successively delivered by the step by step feed and on which the blanks are pressed, folded or wiped into conical form with their longitudinal edge portions overlapping, the cemented edge of each forming the outer ply, said overlapping edges being then subjected to pressure to flatten them out and drive the cement thereinto to form a tight seam.

In the drawings, I show any suitable frame uprights or supports 1, carrying a longitudinally elongated horizontal top slideway or floor 2, having a straight longitudinal vertical guide and alining wall 3, extending throughout the length thereof. If so desired, a stop or uide wall I, can be arranged at the opposite longitudinal edge portion of the slideway or fioor 2.

Any suitable support 5, for a vertical stack or pile of flat paper material blanks a, can be arranged adjacent to the receiving end of the table or floor 2, so that an operator can easily remove blanks one at a time from this pile and place them flat face down onthe receiving end of the table with one longitudinal edge of the blank lined up against the guide wall 3, for the purpose of properly positioning the blank.

The table or floor is provided with any suitable means for propelling the blanks longitudinally of the table to the discharge end thereof with said one longitudinal edge of the blank held to and sliding along the guide Wall 3.

The blank propelling or feeding mechanism is preferably continuously moving so that the movement of the blanks will be continuous throughout-the length of the table. In the example illustrated, -I show an endless continuously moving chain 6, for this purpose, at uniformly spaced intervals provided with blank end engaging abutments, projections or fingers 7. This chain or endless traveling connection 6, is arranged with a forwardly moving horizontal ply located longitudinally and about centrally of the table or floor 2, and depressed below the plane thereof yet so that the abutments 7, will project upwardly above the plane thereof to engage the rear edges of the blanks and propel them forwardly along the floor.. This top ply of the traveling chain passes over sprocket wheels mounted on shafts 8, 9, arranged at.the end portions of the frame, and depends from said sprocket wheels to sprocket wheels 10, 11, arranged at the lower portion of the frame. The sprocket wheel 11, drives the chain and is carried and driven by a shaft 12. The abutments or vpushers 7, of the continuously moving connection are spaced adistance apart greater than the length of the blanks the apparatus is intended to operate on, and the blanks are dropped onto the receiving end of the table one by one between the said pushers, so that each pusher will engage the rear curved edge of a blank and push the same forward on the table and. each pusher is preferably inclined to have a tendency to hold the blank laterally against the guide wall 3, and the action of the pushers on and the proper positioning of the blanks is facilitated by one or more rows or series of spring or upwardly yielding presser feet, fingers or guards l3, arranged longitudinally of and over the table and arranged to exert pressure on the top faces of the blanks and hold them down to the floor. In this instance, the presser feet are approximately U-shape with upper and lower horizontal legs arranged in the same vertical plane, the lower legs having free downwardly bearing rearwardly projecting ends while the rear ends of the upper legs are secured to an elevated cross bar 14. The downwardly curving front portions of these presserv feet are arranged in advance of the receiving end of the table so that the blank can be placed on the table in front of said remote curved portions and will be guided thereby in passing under the spring portions of the feet.

Any suitable glue or other cement applying device is arranged near the receiving end of the table. In the particular example illustrated, I show any suitable glue or other cement pot or tank 15, suitably supported under the table, and if so desired provided With a water jacket and heating means. A rotary vertical cement applying or distributing Wheel or roll'16, dips into the liquid cement in this pot and extends upwardly therefrom through a slot in one of the floor strips of the table adjacent to the guide Wall 3. This cement applying roll is mounted on and driven by a shaft 17, arranged and suitably mounted beneath the slideway or table, and this shaft can be driven by chain 18, from shaft 8, through the medium of sprocket Wheels on said shafts, so arranged that the top peripheral surface ofthe cement roll 16, Will move forwardly in the direction of movement of the blanks on the table, and if so desired, the drive for the cement applying roll can be such that the peripheral speed of said roll will be the same as the rate of forward movement of the blanks on said table. The periphery of said cement applying roll projects slightly above the top surface of the table and the axis of said roll is at right angles to thedirection of movement of the blanks so that each blank will throughout its entire length travel on said roll and have an unbroken line or stripe of cement deposited or distributed on its under face. The top edge. of the roll is ar ranged at the edge portion of the table so that the line or stripe of cement is deposited on the side face and throughout the length of a longitudinal edge portion of the sheet. A yieldingly-depressed idler or pressure roll 20, is arranged above the cement applying roll to hold the longitudinal edge of each blank down on the periphery of said cement applying roll. The roll 20, is carried by a spring held swinging arm 21, any suitable stop or abutment being provided to keep the idler roll from engagement With the. periphery of the cement applying roll.

A scraper, such for instance as 22, is preferably arranged in or over the cement pot to regulate the quantity of cement carried upon the periphery of the cement applying roll. The cement applying roll is arranged a distance in advance of the blank receiving end of the feed table, at least slightly greater than the length of a blank so that each blank Will become properly positioned on the table beforeit reaches the cementing roll. In this instance, the spring presser feet 13, are arranged to bear down on each blank Whilethe blank is passing over the surface of the cement applying roll. Certain of the spring presser feet 13, are

continued relar'wardly beyond the cross bar 14:, to the 'rear end of the table to hold the blanks down on the floor thereof While hemg continuously propelled. by the endless chain. The table is elongated beyond the cement applying roll so that the blanks will travel along said table for some distance after the cement has been applied and thereby give the cement an opportunity to partially dry or at least begin to dry before the blanks pass from said table. The table is formed to prevent the line or stripe of cement on the bottom face of each blank from contacting with the floor or slideway of the table. For instance, the floor can be formed with a longitudinal groove or depression 24, beginning at the slot through which the cement applying roll projects and extending therefrom to the rear end of said floor, and arranged besio or at the base of the guide wall 3, as more fully'illus trated by Figs. 3 and 4.

The continuously moving conveyer 6, 7, delivers the blanks from the rear or discharge end of the table to the receiving station of the step by step conveyer or feed device, at which station the blanks are transferred from the table into the path of movement of the step by step conveyer. The step by step feeder carries the blanks forward in a straight line parallel with their longitudinal centers and delivers the blanks on and with their longitudinal centers over the mandrel and parallel with the longitudinal axis thereof and in position to be pressed down around the mandrel. The blanks are carried forward on the table by the continuously moving conveyer in a direction parallel with an inclined longitudinal blank edge and hence at an angle or inclination to the longitudinal center of the blank, because of the tapered formation of the blanks and the necessity of applying the hne of cement along and parallel with an inclinedvlongitudinal edge of each. The longitudinal axis of the continuously movmg conveyer table is hence arranged at an angle to the longitudinal axis of the ste by step feed or conveyer table equal to the angle of either longitudinal edge of a blank with respect to the longitudinal axis or center line of such blank, where tapered blanks are to be handled for the production of conical container bodies.

Where parallel edge or rectangular blanks are to be handled for the production of cylindrical container-bodies the table having the continuously moving conveyer Will be arranged in direct alinementwith or continuation of the. step by step feed, or elsemeans will be provided to laterally and bodily shift the blanks or to bodily and individually turn the same to change the direction of movement thereof when parallel edge blankspass from an inclined cement applying table, such as shown, to a step by step feed arranged at an angle thereto.

In the example illustrated, the blanks pass from the continuous feed table to the step by step feed and move forward along the same without lateral shlfting or rockingabut merely by changing the direction of feed. The continuous feed table delivers each blank to a position wherein its longitudinal center axis is in line With the path along which 'the'longitudinal centers of the blanks move in the step by step feed, and

i then said feed begins to act on said blank by engagement with their rear end corners- (where tapered blanks as shown, are being operated 6n).

vA rigid fixed horn or mandrel 28, projects horizontally and forwardly from the .rear end of said table and the longitudinal axis of this mandrel is alined with the center longitudinal line or axis of said slideway or table and the top edge or surface of the horn is approximately level w th the floor 25, so that the blanks-can sllde from the floor onto and along the top edge of the mandrel and beneath a presser bar 29, arranged longitudinally of and above the mandrel, as more fully described hereinafter.

I show a reciprocating slide arranged in the floor 25, and provided with several sets of catches arranged longitudinally thereof and constructed to slip freely past the blanks on the backward stroke of the slide which the blanks slide.

but to engage the rear edges of the blanks and move them'forward a step on the forward stroke of the slide; means being provided to hold the blanks to the table and against retrograde movement when the slide makes its return stroke. In this part cular example, the slide consists of'two palrs of parallel longitudinal spaced bars 30, 31, reciprocating in longitudinal .grooves or depressions formed thereforin the table top or slideway so that the top edges of'thebars are approximately flush with the surfaces of the table on the upper faces of These four bars 30, 3]., are rigidly connected together to move as one, by 'a cross head or member 32, arranged below the bars and, table and to which the several bars are fixed in any suitable manner. The means for reciprocating the bars is applied to this cross head. For instance, for this purpose I show a vertical rotary shaft 33, arranged below the table and supported in any suitable manner, as by bracket or arm 34, and at its upper end provided with lateral or crank arm 35, operatively connected with a stud 36, rigid with and depending from cross head 32, by means of a pitman 37 so that the cross head and slide bars are reciprocated by the rotary shaft as will be readily understood by those skilled in the art. The pitman 37, is preferably adjustable in length so that the limits of the slide movement can be shifted forwardly or rearwardly. The vertical shaft 33, is usuallydriven by the continuously operating main shaft 38, of the apparatus, through the medium of gearing 39, to lon gitudinal shaft 40, and gearing 41', connecting shaft 40, with cross shaft 42, and gearing 43, connecting shaft 42, and said vertical shaft 33. The continuously moving endless conveyer of the table wherein cement is applied to the blanks can also be actuated from said main shaft 38, through the medium of longitudinal shaft 45, and gearing 44, connecting the same to said shaft 42, and gearing 46, connecting-the same to the hereinbefore described shaft 12, carrying the sprocket wheel 11, that drives the endless conveyer.

The pair of bars 30, of the slide form the outside members of the reciprocating slide and in length are approximately equal to the length of the table 25, and are so arranged that their rear ends will project forward a short distance beyond the rear end of the table and be located at oppositesides of and spaced from the base of the mandrel or horn 28, while their front-ends will be arranged in the table in advance of the front edge thereof, when the slide is at its limit of forward movement, at the end of its feeding ..stroke;' and. so that the rear ends of the bars will be located in the table a distance behind the rear edge thereof While their 'front ends will be in advance of the front end of. the table approximately back to the rear end of the continuous conveyer table to receive a blank delivered from said table.

' The rear ends of said bars 30, are provided with upwardly projected forwardly beveled and rearwardly facing pawls, catches or shoulders 47, to'engage the rear end of each blank and push the same forward.

At a distance in advance of catches 47, slightly greater than the length of a blank a, the bars 30, are provided with catches or pawls 48, and in advance of pawls 48, with pawls 49, with pawls 50, arranged approximately at the front ends of said bars, said several sets of pawls being uniformly spaced apart a distance slight1y.in excess of the amoea length of a blank The pawls 48, 49, 50,

are usually similar in construction and are set down in recesses in the bars and pivotally confined to swing vertically to project their rear ends upwardly beyond the plane of the table to engage and push the blanks and to swing down so as to be flush with the top surfaces of the bars when sliding along the under faces of the blanks on the return move ment of the slide. Springs 51, are usually arranged under the pawls to yieldingly uphold the same in operative position, all as shown by Fig. 12, although of course, the invention is not so limited, nor in fact, is the invention limited to any particular number or arrangement of blank engaging pawls or other pushers.

Any suitable means can he provided to hold the blanks down on the slide and table and to overcome the tendency of the blanks to move with the slide when performing its return stroke, and yet to permit the blanks to freely move forward with the slide on its forward or feed stroke and to hold the blanks at each step, stage or station to which they have been advanced until the slide makes another feed stroke. However, in the particular example illustrated, I show, for this purpose, several parallel spaced downwardly pressing upwardly yielding spring presser feet or bars 52, arranged longitudinally of the table and bearing down on portions thereof on which the blanks slide and arranged between the bars of the slide so that said presser bars have frictional engagement with the top faces of the blanks and hold the blanks down into frictional engagement with the surfaces of the table on which the blanks rest. The presser bars usually have elei'ated forwardly extending legs or ends by which the bars are secured to any suitable supports such as the upright frame 53, and a rigid bracket 54, projecting forwardly therefrom (Fig. 1). One or more of these presser bars, such as 55, can be secured at its upper rear end to the bracket 54, and can extend forwardly along the table and beyond the front end thereof over the station at which the blanks are transferred to the reciprocating slide.

The bars 30, are arranged to take a blank from the blank-receiving station in front of the table 25, by means of move said blank forward the first step and deposit the same approximately on the front end of the table, at the same time that the catches 48, are moving a blank forward from said front end of the table on the second step, and the catches 49, are moving a blank forward on the third step, and the catches 50, are moving a blank forward on the fourth step and final step and depositing the same on the mandrel for pressing to conical form. In the particular example illustrated, on each forward stroke of the catches 47, and,

slide four uniformly spaced and successively arranged blanks are simultaneously moved forward and advanced a step, and on the return stroke of the slide, the catches 4:8, 4:9,

and 50 slip back along the under surfaces of the three blanks previously moved for ward and deposited on the table by the catches 47, 48, and 49, 'the blank previously moved by catches 50, having been deposited on the mandrel beyond the table and the catches 17 moving back under a blank that has been deposited from the continuously moving conveyer at the receiving or transfer station.

The bars 31 of the reciprocating slide are spaced a comparatively short distance apart and are arranged between and spaced from the outside bars 30, of the slide and project rearwardly a distance in advance thereof and are primarily intended to operate and carry means for ejecting or discharging each container body from and after it has been completed on the mandrel or horn. To this end, the top longitudinal portion of the mandrel is formed with a pair of spaced slideways or recesses 56, extending throughout the length thereof and separated by a central longitudinal rib or ridge 57, that cooperates with the superimposed presser bar 29, in holding the blanks when in operative position on the mandrel. The front ends of the slide bars 31, slide in said recesses 56, and fit said rib 57, and are preferably beveled to conform to and complete the exterior form of the mandrel at both sides of said rib. Forwardly, from their rear ends, said bars 31, are provided with pawls or catches 58 (Figs. 9, 10, and 11) arranged in recesses in the bars and pivoted to swing to depressed inoperative position and provided with springs 59, to normally elevate their rear ends to operative position to engage the large ends of the completed bodies and push the bodies forwardly from the mandrel so 'that they will drop therefrom.

The bars 31, project forwardly beyond the mandrel when the slide'is at its limit of forward movement and said bars and their catches 58, are on themandrel and under the blank while the blank is being pressed on the mandrel and formed into a conical body, and the catches are thereby held depressed as the slide moves on its return stroke. As the slide completes its return stroke, the catches move back from the rear end of the body on the mandrel and spring up in front of the rear edge thereof and hence press forward against said rear edge as the slide moves on its feed stroke and force said completed body from the mandrel in advance of the blank that is then being carried forward over the mandrel by the catches' 50. v

The discharge or rear end of the cementing or continuously moving conveyer table of the step by step conveyer table.

is spaced from the front or receiving end of the step by step conveyer table a distance approximately equal to or usually not less than the length of ablank, to provide the intervening blank receiving station for the step by step conveyer, but the guide wall 3, of the cementing table is continued forwardly (see 3') along said station to assure the proper positioning of each blank when delivered to the step by step conveyer receiving station by the continuously moving conveyer. The blank when in said station has passed forward beyond the range of action of the endless conveyer and its longitudinal center is in direct alinement with the longitudinal centers of the blanks on the step by step conveyer table and said blank is in position to move forward in a straightline parallel with its longitudinal center and with its reduced front end accurately centered between the guide walls or edges 27 However, the forward extension 3 of the guide wall 3, parallel with and engaging the cemented inclined longitudinaledge of the blank (1, at said station (see Fig. 5) obstructs the direct forward movement of the blank in the line of its longitudinal center, and furthermore, the blank when it enters said station is slightly elevated above the horizontal plane of the front ends of the bars 30, of the reciprocating slide. Hence, a transfer device is provided to move the blank down to clear the guide wall extension 3, and permit forward movement thereof, and to bring the blank into the range of action of the reciprocating slide. In the particular example illustrated, (Figs. 3, 5, 6 and 8) this transfer device consists of a horizontallyarranged vertically movable loop frame or yoke 60, located between the rear end of the continuously moving conveyer table and the front end of the step by step conveyer table and transversely of the blank transfer or receiving station and consisting of upper and lower bars arranged above and below the path traveled by the blank and vertical posts between which said path extends and which rigidly connect the ends of said upper and lower bars. This vertically movable yoke carries parallel downwardly pressing yielding forwardlyextending presser bars 61, preferably curved upwardly at their front ends to guide the blanks and extended rearwardly with their upper rear ends secured to the upper bar of the yoke so that the presser bars rise and fall with p the yoke. The rear free ends of the presser bars usually extend approximately to orv over the front end of the table 25, while the front extended end of the presser bar 55, is shown extended forwardly over the transfer station and into the opening of the yoke between the presser bars 61, thereof.

hand floor strip 2, to guide and to uphold the left hand rear corner of the blank while in and passing from the transfer station. The right hand (or cemented) portion of the blank is guided in entering the transfer station by the edge wall extension 3, to properly center the blank, and is upheld in entering said station by a horizontal rail 63, fixed on the bottom bar of the yoke and arranged parallel with the guide wall 3'. The under face of the blank rests on the narrow top edge of this rail, and the rail is so spaced inwardly from the wall 3, as not to engage the stripe of cement on the under face of the longitudinal right hand edge portion of the blank.

\Vhen the transfer yoke is in elevated position, its rail 68, is arranged beside, but spaced from, the edge wall 3, and a blank is then pushed forwardly by the particular endless chain projection 7, engaging the same, into' said yoke and from the floor strips 2, and onto the floor strip 62, and the rail 63, and under the elevated presser bars 61, of the presser yoke and the presser bar 55, of and projecting from tab e 25, and usually with the front end of the blank lapping over the rear end of the table 25, and over the short forwardly and downwardly beveled guide fingers 64, projecting rearwardl from the front end of the table. lVhen the blank has reached this position, at the transfer or receiving station, the projection 7, of the endless conveyer 6, slips down from the rear edge of the blank and thus leaves the same at rest in the transfer yoke, and with the inclined longitudinal cemented edge of the yoke abutting the inner face of the guide wall 3. As the blankthus enters the transfer or receiving station, the reciprocating slide is on its feeding stroke and the bars 30, are in advance thereof. After the blank has thus been properly positioned in the'transfer station, and after the slide bars 30, have moved back under said blank and their catches 47, are located behind the rear edge of the blank, the transfer yoke descends to the position shown by Fig. 6, and through the medium of the yoke presser bars 61, and a blade 65, bends the blank and forces the same down onto the slide bars 30, and its cemented edge portion to a plane below the lower edge of the guide wall 3, so that the catches 47, of the bars 30, will engage the rear edge of the carries a roll 68, held to emma blank and push said blank forwardly onto thetable 25, on the next feeding stroke of the slide.

The blade 65, is longitudinally elongated and fixed to the top bar of the transfer yoke and depends therefrom at the inner side of and parallel with the guide wall 3, and when the transfer yoke is in elevated position, the blank entering said yoke passes under the lower edge of said blade. When the transfer yoke descends, said blade bends down the longitudinal cemented edge of the blank until said edge portion of the blank is below said wall 3, and can move freely forward under the same when the reciprocating slide moves on its feeding strok. The blank is thus cleared from said guide wall 3, without bodily shifting the blank laterally and without permitting its cement stripe to engage parts of the apparatus.

The vertical movement of the transfer yoke is controlled by a stiff horizontal arm 66, arranged below and secured to the bottom bar of said yoke and extending laterally therefrom and at its outer end fixed to the upper end of a vertical longitudinally movable slide bar 67, the lower end of which the periphery of a rotary cam 69, by the weight of the yoke, arm and bar. The cam 69, is fixed to the end of the continuously rotating shaft 12. The slide bar 67, is freely slidable vertically through a vertical guide or bearing in a rigid arm or bracket 70, fixed to and extending forwardly from the front frame upright 26. The peripheral or working edge of the cam 69, is formed of'a continuously increasing curvature to provide an abrupt shoulder so that on each complete revolution of the cam, the transfer yoke is elevated from its low to its high position and allowed to drop by gravity from high to low position.

The cam is so arranged with respect to the pusher 7, on the endless conveyer chain 6, that the transfer yoke is raised and low-- ered for each pusher 7, and is properly timed with respect to said pilshers to receive each blank'and act on the same, as hereinbefore described, in proper sequence with respectto the movement of the pushers 7, as well as with respect to the movements of the reciprocating slide of the step by step feeder. The proper timing of the operating parts is attained through the actu-' atlng gearing hereinbefore described.

Theright hand bar 30, of the reciprocating slide and the right hand portionof the front end of the table 25, are formed to pre-. vent contact of the surface cement stripes on the right hand edge portions of the under faces of the blanks as the blanks pass forward from the transfer or receivin station. The right hand finger 64 can be e evated to engage the under face thereof with the of the cement stripe and thereby elevate the right hand edge portion of the blank so that the cement stripe will not contact the adjacent bar 30, and its catches 47, and 48, or the adjacent surfaces of the table 25. Certain portions (such as 30) of the right hand bar 30, can be reduced and beveled off to prevent contact with the cement stripes, and the longitudinal right hand portion of the floor 25, to the right of the right hand bar 30, is usually depressed to prevent contact with the said cement stripes. Also elevations or ribs 25, can bearranged at certain pointson the table 25, to elevate the right hand portions of the blanks so that the catches or pawls of the right hand slide bar can move on their return under the front end portions of the blanks without contacting the cement stripes.

In this connection, it will be noted, that the apparatus is designed and arranged to prevent the cement stripes on the blanks contacting with surfaces of the tables and propelling devices at any points between the cement applying mechanism and the mandrel or horn.

The step by step feed successively delivers the blanks at the proper intervals onto the mandrel 28, and under the presser or holding bar or foot 29. This foot 29, is mounted in and supported by brackets 77, depending from the top portion of the frame 53, and is so mounted in said brackets as to allow slight vertical yielding movement of the foot, and one or more springs 7 5, can be providedabove said foot to yieldingly hold the lower straight blade like edge thereof in engagement with the interposed blank to press the same against the narrow straight top edgeof the rib 57, of the mandrel to grip each blank between said parts along its approximate longitudinal center line and throughout the length thereof. The reciproeating or step by step feeder pushes the foremost blank of the series being operated on by said feeder between the parallel straight superimposed edges of said cooperating blade like parts 29, 57, which hold the blank by its center against retrograde movement, and over the mandrel with its portions on opposite sides of said center line free and in position to be folded down and pressed to the mandrel.

After the body is completed on the mandrel, the body ejector pawls 58, engage the rear edge of the body at both sides of and close to said gripping edges 29, 57 and push the body outwardly therefrom and drop the same from the mandrel.

Any suitable means can be provided to press the blank to and around the mandrel and to apply the desired radial pressure to the overlapping edges-thereof to form the desired tight permanent seam throughout the length of the body. However, in the specific example illustrated, I show a pair of swinging arms 76, mounted on a suitable common axis carried by brackets 77, and at their free ends provided with shaping and pressing wipers or heads 78, adapted to bend down the opposite free portions of the blank on the mandrel, and press the same to and around the mandrel with their longitudinal edges overlapping at the center of the bottomof the mandrel with the cemented edge outermost. I also show a vertical blade '79, arranged below the mandrel and in the same vertical plane as the longitudinal center of the mandrel and having a transversely concaved top blank engaging and pressing edge 80, of approximately the same length as the mandrel and arranged to fit the outer surface of the outer ply of the overlapping edges of the blank on the mandrel and apply excessive upward pressure thereto for the purpose hereinbefore described. This blade 79, is carried by and rises from a vertically reciprocating head 81, confined in suitable guideways carried by the frame 53. The head, in this instance, is reciprocated by the crank 82, of the main shaft 38, through the medium of a suitable link or pitman 83.

The presser heads or wipers can be operated by any suitable means, although I show rotary cams 8i, fixed on the main shaft 38, for this purpose, operatively connected with the vertically swinging arms 76, respectively, through the medium of vertical slides 85, having rollers confined in the cam grooves, and toggles 86, coupled to the arms 76 and to frame 53, and con nected to said slides 85, by pitman 87. 4

The arms 76, are normally elevated above the horizontal plane ofthe mandrel and the blank thereon and extending in opposite directions from the elevated common axis on which they swing, and said arms are actuated by their operating connections to simultaneously swing downwardly and toward each other on their operative strokes to press inwardly against the mandrel from opposite sides, and said presser heads 78 are formed to fold the opposite side portions'of the blank down around and inwardly under the mandrel and cause the same to tightly and snugly fit the mandrel and accurately conform thereto. These heads 78, are so formed and operated as to necessarily cause the right hand (looking at Fig. 2) longitudinal edge a (Fig. 16) of the blank to fold or press up against the bottom face of the mandrel ahead of the other (which is the cemented) edge of the blank and without permitting said right hand edge of the blank to contact the cement on the other blank edge, except as said edges contact by the act of folding the left hand edge a" up against the bottom (outer) surface of the right hand edge after said right hand edge has moved up to the bottom m spee surface of the mandrel. The cement a, will hence be located between the outer surface of edge a, and the inner Surface of the superimposed edge -a, in the completed body a, shown by Fig. 18.

The operating connections of the presser heads 78, and seam pressing blade 79, are so timed as to cause the presser heads to first press the blank tightly around and conforming to the mandrel with the blank edges overlapping as described, and then to cause the pressing blade to move up and exert excessive upward pressure directly on the over-. lapping edges 'to flatten out said edges and drive the cement into the body or fibers of the paper and to form a fiat permanent seam. \Vhile the blade is thus completing and perfecting the scam, the presser heads are moving back to inoperative position. The blade thereupon moves down on its return stroke, before the body ejector starts on its forward body ejecting stroke.

The operating connections for the body forming mechanism (presser heads and seam pressing blade) are so timed with respect to the operations of the reciprocating feeder, that the body forming operations take place while said feeder is making its return strokes, and the return strokes of the body forming mechanism occur while said feeder is making its operative or feeding strokes.

The operating connections for the continuously moving conveyer, and for the reciprocating conveyer are so relatively timed as to cause deposit of blanks at the transfer station at the proper intervals and in proper sequence" with respect to the feeding strokes of the reciprocating conveyer, in other words, so that the individual blanks will be successively deposited at the transfer station at approximately the same speed at which individual blanks are successively deposited on the mandrel by the reciprocating conveyer, whereby the reciprocating conveyer will on each return stroke find a blank waiting for it at the transfer station. Also, the operating connections for the transfer device or yoke are so timed as to operate said yoke in proper sequence with respect to the spacing and speed of the pushers 7, and the strokes of the reciprocating conveyer, as hereinbefore recited.

The mandrel orhorn and the heads for pressing the blanks thereto are preferably removable so that mandrels and heads of difierent shapes and sizes can be kept on hand and used in the apparatus to produce container bodies of different sizes and shapes. The various guide walls of the conveyers are also usually adjustable to receive blanks of different dimensions, and the conveying devices can also be rendered adjustable for this purpose. a

It is desirable to wipe or press the blank amont tightly or snugly to the mandrel with its non-cement carrying edge a pressed up to the under surface thereof and thus held until the cement carrying edge a", is applied thereto and flattened out thereon, and to holdthe pressure of the blade 79, against the overlapping edges of the blank as long as possible. To attain these ends, I provide the right hand head 7 8, with a yieldinglyheld extenaion face, plate or blade 78, arranged. longitudinally thereof and projecting transversely or forwardly therefrom to engage the edge portion a, of the paper blank and hold the same approximately flattened out and snugly up against the under side of the mandrel and in proper position to receive the cement carrying surface of the under and overlapping blank edge a", when pressed upwardly and against edge a, by the blade 79.

As hereinbefore described, the right hand head 78, is arranged to press the right hand portion of the blank upwardly to the under side of the mandrel ahead of and out of contact with the left hand portion of the blank so that when the two heads 78, are in their lowered positions holding the blank to the mandrel, the blank and heads will be arranged about as illustrated by hi 16.

The left hand head is pre erably so formed and arranged as not to press the cement carrying blank edge up into contact with the other blank edge or with the extension face plate of the right hand head, and said left hand head is also so constructed and arranged as not to extend into the path of movement of the vertical pressing blade 79. @n the other hand, the extension face plate 7 8, of the right hand head when in its lower blank holding osition, extends approximately to the vertical plane of the longitudinal center of the mandrel, and hence does project into the path of movement of said vertical blade 79. llnasmuch as the two heads remain in position holding the blank approximately until the blade 79, has moved to position pressing the overlappin edges of the blank together, it is de sira 1e to provide means for withdrawing the face plate to permit the blade 79, to move up past the same. Toaccomplish this result, I slidably confine the face plate to;

a downward stroke, the pins 79, Wllll t t the closed uper ends of the fixed loops 8f,

the head by headed bolts 78", passing through slots in the. plate, and back the plate by coiled comparatively light eansion springs 78, compressed between a tion (Fig.16) and the blade 7 9, moves up to complete the cemented seam of the blank,

the upper right hand corneror edge of the blade will engage the beveledcorner 78, of

blade and the" springs are e anding.

- head or holder 81,. as to permit an extensive relative vertical movement between these parts, whereby the blade can remain stationaryand under pressure against the blank seam while the head is performing substantial portions of its up and down strokes. To this end, the head is formed with a vertical socket or slot 81, receiving the blade 79, in vertical sliding engagement. Comparatively still" or heavy coiled'expansion srings 81', back this-blade and tend to yiel ingly uphold the same to its lit of vertical movement which is determined by any suitable arrangements of slots and pins. For instance, ll show vertical longitudinally slotted plates or loops 81, fixed to the head 81, and stop pins 79, rigid with the blade and-confined and vertically movable in the slots of said plates or loops 81, and permitting an extensive vertical movement of the blade in the head.

The springs are compressed between the lower horizontal edge of the blade and the floor of the'socket in the head. By this an rangement, the blade can be so arranged, that the top edge 80, of the blade will ongage the edge a, ofthe blank and press it up to proper position on the blank ed a, andbegin to exert seam compressing pressure thereon a substantial length of tune before the head 81, completes its. upward stroke, during which period the head slides upwardly on the blade and increases the compression of the springs and pressure of a mented. seam will then continue for a sub stantial length of time while the head is moving on its downward or return stroke,

during which period the head slides on the the time the head has aostcompleted and the blae will'move down a short dis the passageof the edg portions of'thenext blank placed on the body'as saided portions aree' wnng around the under side of the body bylthexheads 78. It will thus be noted that the blade 79, will apply ressure toeach'; ented' seam-d it the ater ,l mlionofeach up and down stroll the tancethpermit the ejection ofj'the-container' head'81, whereby certain material advantages are attained in the production of perfect permanent seams.

The apparatus is designed to carry each blank through the cement applying apparatus with a continuous movement at a uniform'comparatively slow rate of speed to cause accurate deposit of the desired quantity of cementin the form of a straight,

unbroken even uniform stripe throughout the length of the blank without danger of throwing the cement or causing uneven deposit thereof, and to then allow the necessary length of time to lapse between the cement applying and body forming operations to permit the cement to become partially set or tacky before the cemented seam is compressed in the body forming operation. If so desired, a draft or blast of air can be applied to the cemented portion of each blank or said cemented portion can be otherwise treated at some point between the cement applying device and the cement-seam compressing position, to hasten 4' such as to permit partial drying or setting of the cement stripe on each blank by the said blank is subjected to the seam compressing operation.

It is 'evident that various changes, omissions, additions and modifications might be resorted to without departing from the spirit and scope. of the invention and hence I do not wish to limit the invention to the disclosures hereof.

Desiring to protect the invention as broadly as is legally possible, what I claim is:

1. Apparatus for forming container bodies with longitudinal permanent cemented seams from flat paper material blanks, comprising a continuously moving conveyer for successively carrying forward flat blanks at regular intervals and for delivering the same at a transfer station, a device for depositing a stripe of liquid cement along one longitudinal edge of each blank while being carried forward by said conveyer, a reciprocating step by step conveyer for successively receiving blanks from said transfer station and carrying the same forwardstep by step at regular. intervals, and body forming mechanism to whih,said blanks are successively delivered 'at'regular intervals by said reciprocating conveyer. I,

2. Mechanism for pressing a fiat paper material blank into permanent container body form with its longitudinal edges cemented together and flattened to form a tight scam, in combination with a liquid cement applying device for depositing a stripe of cement along the longitudinal edge of a flat paper material blank, and blank conveying means for successively carrying blanks through said=device to receive cement and for simultaneously conveying a multiplicity of said blanks along an extended path of movement from said device to said mechanism, while maintaining said blanks spaced apart and arranged in succession, and successively delivering said blanks at uniform intervals to said mechanism.

3. Container body forming mechanism for pressing a fiat paper material blank having liquid cement applied to a side face of one longitudinal edge into permanent container body form with the longitudinal edges of the blank overlapping and compressed together to form a permanent tight scam, in combinationwith a cement applying device .located remotely from said mechanism for applying cement to a longitudinal edge portion of each blank, and conveyer mechanism for successively receiving blanks from said device and conveying the same along an extended path to said mechanism and exposing the cement on said blanks to setting influences while in transit, said conveyer mechanism embodying means to prevent the cement on said blanks contacting with other surfaces while in transit.

4. A cement applying device for depositing an unbroken stripe of liquid cement along the lower face of a longitudinal ed e of a continuously moving flat paper blan r, and apparatus for successively moving blanks through said device and along an extended path of movement without contacting the cement on their lower faces, said apparatus constructed and arranged to simultaneously move forward a multiplicity of successively arranged spaced blanks and to deliver the same at uniform intervals into container body forming mechanism with the cement at the under faces of the blanks, in combination with mechanism for pressing said blanks into permanent container body form with the longitudinal edge to which the cement is applied overlapping and superimposed on the opposite longitudinal edge of each blank and compressed thereto to form a tight permanent cemented seam.

5. A longitudinally elongated convever table provided with a continuously moving endless conveyer having uniformly spaced prO ecting pushers for engaging the rear edges of fiat paper material blanks, a liquid cement applying device arranged on said table for depositing a stripe of liquid cement along a longitudinal edge of each blank trap moved along said table by said conveyor, said table embodying a longitudinal edge guide againstwhich said blanks are aed as they are propelled along the table by said a conveyor, transfer means receiving the blanks successively from said table, and a step by step conveyor successively receig the blanks from said transfer device, in combination with mechanism successively receiving the blanks from said step by step conveyer, said mechanism being constructed and arranged to successively press the bla' into permanent container body form with their edges overlapping and cemented together.

'6; In apparatus for forming conicalpaper container bodies from flat tapered paper blanks having liquid cement on one longitudinal edge of each, in combination, a conzll tinuously moving conveyer, ding means against which one inclined longitual ede of each blank on said conveyor is alinc, means for depositing. liquid; cement on one' longitudinal edge of each blank, body forming mechanim for pressing the blanks into permanent container body form with their longitudinal edges overlapping and cemented together, a step by step conveyor for successively delivering the blanks to said mech- Ml anism, and means for receiving the bla from said continuously moving conveyer and delivering the same to said step by step conveyor, saidilast mentioned conveyor having its longitudinal axis arranged at an angle 3 to the longitudinal axis of said continuously moving conveyer approximately equal to the angle between the center longitudinal axis of a blank and the inclined longitudinal edge of such blank. In combination, mechanism for. pressing tapered flat paper material blanks into permanent conical container body form with the edges of the blanks overlapping and cemented together, a conveyor table provided with a longitudinal guide and a conveyor for successively moving tapered blanks along said table with an inclined longitudinal edgeof each alined against said guide whereby the line of feed, alongsaid table is parallel with said inclinedlongitudinal edges of the blanks, a cement applying device for depositing liquid cement alonga longitudinal edge of each blank,'andmeansfor succes' sively moving blanks delivered from said.

table to said mechanism with the longitudinal centerlines of the bl t s parallel with the direction of movement of the blanks into said mechanism.

v 8. In combination, means for successively M moving flat paper material blanks-of tapered form in a direction parallel with a longitudinal inclined edge of each blank, a device for applying liquid cement to a longitudinal edge of each blank while being so moved, mechanism for pressing said blanks into conical container body form with their longitudinaledges overlapped and cemented together, and a conveyor device for moving the blanks delivered by said means in a straight line arallel with the longitudinal center lines cli the blanks to said mechanism.

9. In combination, a conveyer table having a longitudinal edge guide, an endless continuously moving conveyer traveling along said table and provided with uniformly spaced projections, a cement applying device for depositing liquid cement on flat paper material blanks of tapered form while being propelled along said table by said projections with a longitudinal inclined edge of each blank alined against said guide,

a movable transfer device to receive the blanks delivered from said table, anotherward fiat tapered paper material blanks in a line of movement parallel with an inclined. longitudinal edge of each blank, a movable transfer device for successively receiving the blanks from said conveyer and for holding the blanks without changing the lateral po sition thereof, a reciprocating step by step conveyor for successively removing the blanks from said transferdevice and carrying the same forward in a line of movement parallel with the longitudinal center lines of the blanks, and mechanism for pressing the blanks into permanent conic'al container 1 body form with their longitudinal edges overlapping and cemented together.

11. In combination, a fixed mandrel having a straight longitudinal top edge, ayield-f ing presser bar above said mandrel and arranged to press a flat paper blank down to said edge approximately along the 'longi- 1 tudinal center line of the blank, movable presser heads for pressing. the opposite side portions of the blank to and around said mandrel with the longitudinal eds of the blank overlapping, and a vertically reciprocating blade arranged. below the mandrel,

and adaptedto move upwardly into exces- O sive. preseurejengagement with said overlappingilongitudinal "edges of the blank, and

mechanisms, for applying liquidv cement to a longitudinaledge portion of a Hat paper Y,

material blankandfor successively deliverng such blanks ontosa id mandrel with the isolongitudinal center lines of the blanks approximately located between said top edge and said presser bar.

12. In combination, a mandrel having a .longitudinal rib, a reciprocating step by step conveyer provided with forwardly extending bars slidably engaging said mandrel along both sides of said rib and provided with compressible container body ejector pawls, means for successively delivering fiat paper material blanks having liquid cement deposited along one longitudinal edge of each blank to said conveyer, said conveyer adapted to successively and at uniform intervals deliver said blanks over said mandrel with the longitudinal center lines of the blanks approximately arranged on said rib, means to hold the blanks to sai rib, means to press the blanks around said mandrel with their longitudinal edges overlapping, and means to press the longitudinal edges of the blanks together to form the container bodies with tight cemented seams.

13. In mechanism for forming container bodies having longitudinal cemented seams from paper material blanks, to one edge of each of which cement has been applied, in

combination, a mandrel, a pair of wiper or and a presser blade for applying radial seam forming pressure to said overlapping edges.

14. In mechanism, of the character set forth, a mandrel, means to press paper material blanks thereto with their longitudinal edges overlapping, a movable head having a fixed rangeof movement toward and from said mandrel, and a spring-held seam pressing blade carried bysaid head and slidable bodily therein, and arranged to apply seam forming pressure to the overlapping edges of the blank during a substantial portion of the operative and return strokes of said head. I

15. In mechanism of the character set forth, a mandrel, wiper or presser heads to press blanks thereon, one of said heads having a sliding spring-pressed extension plate with a beveled edge, and a head movable toward and from the mandrel and provided with a sliding springpressed seam compressing blade adapted to engage said beveled edge toforce the face plate back.

16. In apparatus for forming container bodies with longitudinal permanent cemented seams from flat paper material blanks,

the combination of mechanism for pressing a blank into body form with its longitudinal edges overlapping and cemented together, with means for applying liquid cement to a longitudinal edge portion of each blank, and apparatus for maintaining a multiplicity of said cemented blanks spaced apart and arranged along an extended path of movement between said means and said mechanism and for moving said blanks forward and-successively delivering the same to said mechanism, substantially as described.

17. In combination, in a machine for forming container bodies with longitudinal permanent cemented seams from flat blanks, mechanism for pressing blanks into body form with cemented seams, means for applying liquid cement to a longitudinal edge of each fiat blank, and blank conveying and cement drying apparatus for receiving blanks from said means and successively delivering said blanks in regular order to said mechanism, said apparatus being constructed and arranged to maintain the cement on said edges of the blanks from contact with other blanks and parts of the apparatus and for exposing said cement for drying while said blanks are arranged between said means and said mechanism, substantially as described.

18. In combination, in a machine for forming container bodies with longitudinal permanent cemented seams from flat paperlike blanks, mechanism for pressing said blanks into body form and for overlapping and compressing their edges to form said seams, liquid cement applymg means, mechanism for successively applying flat blanks to saidmeans to. receive cement along their longitudinal edge portions, and a step by step feeding mechanism for progressively advancing said cemented blanks and for delivering them one at a time in regular order to said mechanism for pressing said blanks.

19. In combination, a mandrel, a yielding presser bar arranged exteriorly and longitudinally of said mandrel to press a flat paper-like blank thereto approximately along the longitudinal center line of the blank, movable presser heads for pressing the opposite side portions of the blank to and around said mandrel with its opposite longitudinal edges overlapping, and a reciprocating blade arranged at the opposite side of the mandrel from said bar and movable toward and from the mandrel topress said overlapping edges of the blank together to form a permanent cemented seam, said bar being independent of said heads.

20. In combination, a mandrel, a feeder movable longitudinally thereof to successively deliver flat paper-like sheets longitudinally thereonto and provided with means for ejecting container bodies longitudinally therefrom, movable heads for pressing said sheets to and around the mandrel with their longitudinal edges overlapping, means for applying cement to an edge of each sheet. 

